<!DOCTYPE html>
<html class="reftest-wait">
  <!-- Test: if button is disabled and invalid, it is barred from constraint
             validation and should not be affected by :invalid pseudo-class. -->
  <link rel='stylesheet' type='text/css' href='style.css'>
  <script>
    function onLoadHandler()
    {
      var e = document.getElementById('b');
      e.setCustomValidity('foo');
      e.disabled = 'true';
      document.documentElement.className='';
    }
  </script>
  <body onload="onLoadHandler();">
    <button class='notinvalid' id='b'></button>
  </body>
</html>
